Cavalier-Smith describes the Opisthokonts as being comprised of Choanozoa, Metazoa, and Fungi.[1] In this diagram Cavalier-Smith's Fungi equates to Holomycota and Fungi is used more restrictively. Cavalier-Smith's Choanozoa equates to all Holozoans except Animals (Metozoa). Here Choanozoa is used in a more conventional and restrictive manner.